Welding nozzle clamping device

Abstract

The utility model relates to a welding nozzle clamping device, which belongs to the technical field of welding nozzles and comprises a welding gun seat, a mounting connecting seat, a connecting pipe, a welding nozzle and a clamping and fixing structure mounted on the outer wall of the welding gun seat. According to the welding nozzle clamping device, a welding nozzle is connected with a connecting pipe through the action of a connecting sleeve, the welding nozzle is limited through the action of a first limiting ring, and the welding nozzle is fixed through mutual cooperation of a rectangular limiting sliding frame, a limiting sliding seat, an adjusting rod, a connecting block, an arc-shaped limiting seat and a mounting ring; an adjusting rod cannot move under the action of a rotating shaft, a second limiting ring, a threaded column, a fastening nut, a connecting rod, a mounting rod and a limiting connecting seat, so that the welding nozzle clamping and mounting effect is achieved, the welding nozzle and a connecting pipe are mounted in a sliding connection mode, and the high sealing effect is achieved under the action of a connecting sleeve. And the fastening nut is positioned at the mounting connecting seat, so that the clamping and mounting stability of the welding nozzle is improved.

Description

Technical Field

[0001] This application relates to the field of welding nozzle technology, specifically a welding nozzle clamping device. Background Technology

[0002] The welding nozzle is a key component of welding equipment. Located at the end of the welding torch, it guides and protects the electric arc and gas flow generated during welding. Welding nozzles are typically made of high-temperature resistant materials, such as copper or chromium-zirconium alloys, and are internally designed with specific channels and orifices to ensure that welding gases flow out of the nozzle at an appropriate rate and distribution. This effectively protects the welding area from contamination by oxygen, nitrogen, and other impurities in the air, thereby improving weld quality and reducing weld defects. Furthermore, the welding nozzle helps concentrate the heat of the electric arc, increasing welding efficiency.

[0003] In developing this application, the inventors discovered at least the following problems with the technology: In modern welding technology, the welding nozzle clamping device is an important component of the welding torch, responsible for fixing and positioning the welding nozzle to ensure the accuracy of gas protection or molten pool control during welding. However, during welding operations, the nozzle is directly exposed to a high-temperature environment, which causes thermal expansion of the nozzle and the material at its connection with the torch holder. When welding stops, these parts cool and contract as the temperature decreases. Since the connection between the nozzle and the torch holder is usually achieved through threads, this periodic dimensional change generates stress at the threaded connection, leading to a gradual decrease in the clamping force. This weakening of the clamping force at the threaded connection results in unstable nozzle position on the torch holder, affecting welding accuracy and weld quality. Therefore, a welding nozzle clamping device is proposed to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a welding nozzle clamping device, which has the advantage of improving the stability of welding nozzle installation and solving the problem that loosening causes the nozzle to be in an unstable position on the welding torch holder, affecting welding accuracy and weld quality.

[0005] To achieve the above objectives, this application provides the following technical solution: a welding nozzle clamping device, comprising a welding torch holder, a mounting connector, a connecting pipe, a welding nozzle, and a clamping and fixing structure mounted on the outer wall of the welding torch holder;

[0006] The clamping and fixing structure includes a first limiting ring fixedly installed on the outer peripheral wall of the connecting pipe, a mounting ring fixedly installed on the right end of the welding nozzle, two rectangular limiting slides fixedly installed on the left outer wall of the mounting connecting seat, a limiting slide slidably connected to the inside of the rectangular limiting slide, an adjusting rod fixedly installed on the left outer wall of the limiting slide, a connecting block fixedly installed on the outer wall of the two adjusting rods on opposite sides, an arc-shaped limiting seat fixedly installed on the outer wall of the two connecting blocks on opposite sides, two mounting seats fixedly installed on the front outer wall of the mounting connecting seat, a rotating shaft rotatably installed between the two mounting seats, two second limiting rings fixedly installed on the outer peripheral wall of the rotating shaft, threaded columns fixedly installed at both ends of the rotating shaft, fastening nuts threaded to the outer peripheral wall of the threaded columns, a connecting rod fixedly installed on the outer peripheral wall of the rotating shaft, a mounting rod fixedly installed on the side of the connecting rod away from the rotating shaft, and limiting connecting seats fixedly installed on the top and bottom outer walls of the mounting rod respectively.

[0007] The beneficial effects of the above scheme are as follows: the connecting sleeve not only improves the sealing performance of the welding nozzle and the connecting pipe installation, but also improves the stability of the connection. The adjusting rod slides and adjusts inside the rectangular limiting slide frame through the limiting slide seat. The connecting block, the arc-shaped limiting seat and the limiting clamp seat are used to clamp and fix the connecting sleeve, thereby achieving the effect of fixing the welding nozzle. The adjusting rod is limited and fixed through the action of the rotating shaft, the threaded column, the fastening nut, the connecting rod, the mounting rod and the limiting connecting seat, thereby improving the stability of the welding nozzle installation.

[0008] Furthermore, a limiting bracket is fixedly installed on the outer wall of the two adjusting rods on opposite sides, and two positioning brackets are fixedly installed on the outer peripheral wall of the welding nozzle. The positioning brackets have positioning grooves inside, and the limiting brackets are slidably connected inside the positioning grooves and are adapted in size.

[0009] The beneficial effects of adopting the above-mentioned further solution are: by installing the limiting card seat inside the positioning card seat, the stability of the connection between the welding nozzle and the connecting pipe is improved, and the installation by sliding connection improves the convenience of assembling and disassembling the limiting card seat and the positioning card seat.

[0010] Furthermore, the outer peripheral wall of the mounting ring is provided with two arc-shaped mounting grooves, and the arc-shaped limiting seat is slidably connected inside the arc-shaped mounting groove and is adapted in size.

[0011] The beneficial effects of adopting the above-mentioned further solution are: by fixing the mounting ring through the action of the arc-shaped limiting seat, the connecting sleeve is fixed on the left side of the connecting pipe, thereby achieving the effect of clamping and fixing the welding nozzle. Through the bidirectional clamping action, the stability of clamping and fixing the welding nozzle is improved.

[0012] Furthermore, a limiting groove is provided inside the limiting connecting seat, and the adjusting rod is slidably connected inside the limiting groove and is adapted in size.

[0013] The beneficial effect of adopting the above-mentioned further solution is that the limiting connecting seat limits and fixes the adjusting rod, so that the adjusting rod cannot be adjusted up and down, and the welding nozzle is located between the two adjusting rods and the distance between the outer peripheral wall of the welding nozzle and the two adjusting rods is the same, thereby achieving the effect of clamping and fixing the welding nozzle.

[0014] Furthermore, the diameter of the connecting tube is the same as the inner diameter of the connecting sleeve, the connecting tube is slidably connected to the inner circumferential wall of the connecting sleeve, the right end of the connecting sleeve is in contact with the left side of the first limiting ring, and the diameter of the connecting sleeve is the same as the diameter of the first limiting ring.

[0015] The beneficial effects of adopting the above-mentioned further solution are: the first limiting ring limits the connecting sleeve and the welding nozzle, the connecting sleeve connects the welding nozzle to the connecting pipe, and the connection between the connecting sleeve and the first limiting ring can also achieve better sealing and prevent leakage.

[0016] Furthermore, the outer walls of the two second limiting rings on opposite sides are slidably connected to the outer walls of the two mounting seats on opposite sides, the threaded column penetrates the interior of the mounting seat and extends outward, and the outer walls of the two fastening nuts on opposite sides are respectively attached to the outer walls of the two mounting seats on opposite sides.

[0017] The beneficial effects of adopting the above-mentioned further solution are: the second limiting ring limits the rotating shaft, so that the rotating shaft can only rotate between the two mounting seats, and the fastening nut fixes the rotating shaft, preventing it from continuing to rotate, thereby achieving the effect of clamping and installing the welding nozzle.

[0018] Furthermore, the connecting rod, mounting rod, and limiting connecting seat are all located on the back side of the welding gun holder, and the connecting rod is attached to the back side of the mounting connecting seat.

[0019] The beneficial effects of adopting the above-mentioned further solution are: the connecting rod, mounting rod and limiting connecting seat can be rotated to adjust the angle, which makes it easier to install or separate the limiting connecting seat from the adjusting rod, and improves the convenience of welding nozzle installation.

[0020] Furthermore, the mounting connector is fixedly installed on the left side of the welding torch holder, the connecting pipe is fixedly installed on the left side of the mounting connector, and the welding nozzle is located on the left side of the connecting pipe.

[0021] The beneficial effect of adopting the above-mentioned further solutions is that they form a basic welding spray gun equipment.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This welding nozzle clamping device connects the welding nozzle to the connecting pipe via a connecting sleeve. A first limiting ring limits the nozzle's position. The welding nozzle is fixed in place by the interaction of a rectangular limiting slide, a limiting slide block, an adjusting rod, a connecting block, an arc-shaped limiting seat, and a mounting ring. A rotating shaft, a second limiting ring, a threaded post, a fastening nut, a connecting rod, a mounting rod, and a limiting connecting seat prevent the adjusting rod from moving, thus achieving the desired welding nozzle clamping and installation effect. The welding nozzle and connecting pipe are installed via a sliding connection, and the connecting sleeve provides a high degree of sealing. The fastening nut is located at the mounting connecting seat, reducing the impact of high temperatures on the fastening nut and improving the stability of the welding nozzle clamping and installation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This utility model Figure 1 Schematic diagram of the dorsal side structure;

[0026] Figure 3 This is a schematic diagram of the mounting ring structure of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Welding torch holder; 2. Mounting connector; 3. Connecting pipe; 4. Welding nozzle; 5. Connecting sleeve; 6. First limiting ring; 7. Mounting ring; 8. Rectangular limiting slide; 9. Limiting slide; 10. Adjusting rod; 11. Connecting block; 12. Arc-shaped limiting seat; 13. Limiting bracket; 14. Positioning bracket; 15. Mounting seat; 16. Rotating shaft; 17. Second limiting ring; 18. Threaded post; 19. Fastening nut; 20. Connecting rod; 21. Mounting rod; 22. Limiting connector; 23. Arc-shaped mounting groove; 24. Positioning groove; 25. Limiting groove. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-3 A welding nozzle clamping device in this embodiment includes a welding torch holder 1, a mounting connector 2, a connecting pipe 3, a welding nozzle 4, and a clamping and fixing structure mounted on the outer wall of the welding torch holder 1.

[0031] The mounting connector 2 is fixedly installed on the left side of the welding torch holder 1, the connecting pipe 3 is fixedly installed on the left side of the mounting connector 2, and the welding nozzle 4 is located on the left side of the connecting pipe 3.

[0032] The clamping and fixing structure includes a first limiting ring 6 fixedly installed on the outer peripheral wall of the connecting pipe 3. The diameter of the connecting pipe 3 is the same as the inner diameter of the connecting sleeve 5. The connecting pipe 3 is slidably connected to the inner peripheral wall of the connecting sleeve 5. The right end of the connecting sleeve 5 is in contact with the left side of the first limiting ring 6. The diameter of the connecting sleeve 5 is the same as the diameter of the first limiting ring 6. The first limiting ring 6 limits the connection between the connecting sleeve 5 and the welding nozzle 4. The connecting sleeve 5 connects the welding nozzle 4 to the connecting pipe 3. At the same time, the connection between the connecting sleeve 5 and the first limiting ring 6 can also provide good sealing and prevent leakage.

[0033] The clamping and fixing structure also includes a mounting ring 7 fixedly installed on the right end of the welding nozzle 4. The outer peripheral wall of the mounting ring 7 has two arc-shaped mounting grooves 23. The arc-shaped limiting seat 12 is slidably connected inside the arc-shaped mounting groove 23 and is adapted in size. The mounting ring 7 is fixed by the action of the arc-shaped limiting seat 12, thereby fixing the connecting sleeve 5 on the left side of the connecting pipe 3, thus achieving the effect of clamping and fixing the welding nozzle 4. The stability of clamping and fixing the welding nozzle 4 is improved by the bidirectional clamping action.

[0034] The clamping and fixing structure also includes two rectangular limiting slides 8 fixedly installed on the left outer wall of the mounting connecting seat 2, a limiting slide 9 slidably connected inside the rectangular limiting slide 8, an adjusting rod 10 fixedly installed on the left outer wall of the limiting slide 9, a connecting block 11 fixedly installed on the outer wall of the opposite side of the two adjusting rods 10, and an arc-shaped limiting seat 12 fixedly installed on the outer wall of the opposite side of the two connecting blocks 11.

[0035] Two adjusting rods 10 are fixedly mounted on opposite outer walls with limiting brackets 13. Two positioning brackets 14 are fixedly mounted on the outer peripheral wall of the welding nozzle 4. The positioning brackets 14 have positioning grooves 24 inside, and the limiting brackets 13 are slidably connected inside the positioning grooves 24 and are of the same size. By installing the limiting brackets 13 inside the positioning brackets 14, the stability of the connection between the welding nozzle 4 and the connecting pipe 3 is improved. At the same time, the sliding connection improves the convenience of assembling and disassembling the limiting brackets 13 and the positioning brackets 14.

[0036] Please see Figures 1 to 2The clamping and fixing structure also includes two mounting seats 15 fixedly installed on the front outer wall of the mounting connector 2, a rotating shaft 16 rotatably installed between the two mounting seats 15, two second limiting rings 17 fixedly installed on the outer peripheral wall of the rotating shaft 16, threaded posts 18 fixedly installed at both ends of the rotating shaft 16, and fastening nuts 19 threadedly connected to the outer peripheral wall of the threaded posts 18. The outer walls of the two second limiting rings 17 on opposite sides are slidably connected to the outer walls of the two mounting seats 15 on opposite sides. The threaded posts 18 penetrate the interior of the mounting seats 15 and extend outward. The outer walls of the two fastening nuts 19 on opposite sides are respectively attached to the outer walls of the two mounting seats 15 on opposite sides. The rotating shaft 16 is limited by the action of the second limiting rings 17, so that the rotating shaft 16 can only rotate between the two mounting seats 15. The rotating shaft 16 is fixed by the action of the fastening nuts 19, so that the rotating shaft 16 cannot continue to rotate, thereby achieving the effect of clamping and installing the welding nozzle 4.

[0037] The clamping and fixing structure also includes a connecting rod 20 fixedly installed on the outer peripheral wall of the rotating shaft 16, and a mounting rod 21 fixedly installed on the side of the connecting rod 20 away from the rotating shaft 16. The connecting rod 20, the mounting rod 21 and the limiting connecting seat 22 are all located on the back side of the welding torch holder 1. The connecting rod 20 fits against the back side of the mounting connecting seat 2. The limiting connecting seats 22 are fixedly installed on the top outer wall and the bottom outer wall of the mounting rod 21 respectively. The limiting connecting seat 22 has a limiting groove 25 inside. The adjusting rod 10 is slidably connected inside the limiting groove 25 and is of the same size. The limiting connecting seat 22 limits and fixes the adjusting rod 10, so that the adjusting rod 10 cannot be adjusted up and down. This makes the welding nozzle 4 located between the two adjusting rods 10 and the distance between the outer peripheral wall of the welding nozzle 4 and the two adjusting rods 10 is the same, thereby achieving the effect of clamping and fixing the welding nozzle 4.

[0038] In this implementation case, the connecting sleeve 5 has high sealing performance, and the connection between the connecting sleeve 5 and the connecting pipe 3 improves the overall sealing performance.

[0039] In this implementation case, the arc-shaped limiting seat 12 limits and fixes the mounting ring 7, and the limiting card seat 13 and the positioning card seat 14 limit and fix the welding nozzle 4. Through the two fixed limiting points, the stability of the installation connection between the welding nozzle 4 and the connecting pipe 3 is greatly improved. Moreover, the connection and installation are carried out by sliding connection, which improves the convenience of disassembling and assembling the welding nozzle 4.

[0040] In this implementation case, the fastening nut 19 is far away from the heat source, which greatly reduces the impact of heat on the fastening nut 19, thereby improving the fastening effect of the fastening nut 19.

[0041] In this embodiment, the adjusting rod 10 slides and adjusts inside the rectangular limiting slide 8 through the limiting slide 9. The connecting sleeve 5 is clamped and fixed by the connecting block 11, the arc-shaped limiting seat 12 and the limiting clamp seat 13, thereby achieving the effect of fixing the welding nozzle 4. The adjusting rod 10 is limited and fixed by the rotating shaft 16, the threaded column 18, the fastening nut 19, the connecting rod 20, the mounting rod 21 and the limiting connecting seat 22, thereby improving the stability of the installation of the welding nozzle 4.

[0042] The working principle of the above embodiments is as follows:

[0043] First, remove the welding nozzle 4 and move it from left to right. At this time, the connecting sleeve 5 will slide and connect to the outer peripheral wall of the connecting tube 3. When the right end of the connecting sleeve 5 contacts the left side of the first limiting ring 6, the operator moves the two adjusting rods 10 towards the welding nozzle 4. When the arc-shaped limiting seat 12 slides and connects to the arc-shaped mounting groove 23 and the limiting card seat 13 slides and connects to the positioning groove 24, the operator rotates the shaft 16 to adjust the angle of the limiting connecting seat 22. The limiting connecting seat 22 will then move towards the adjusting rod 10. When the adjusting rod 10 is inside the limiting groove 25, the two fastening nuts 19 are threaded onto the outer peripheral wall of the threaded column 18 so that the shaft 16 cannot rotate. At this time, the clamping and fixing of the welding nozzle 4 is completed.

Claims

1. A welding nozzle clamping device, characterized in that: It includes a welding torch holder (1), a mounting connector (2), a connecting pipe (3), a welding nozzle (4), and a clamping and fixing structure installed on the outer wall of the welding torch holder (1); The clamping and fixing structure includes a first limiting ring (6) fixedly installed on the outer peripheral wall of the connecting pipe (3), a mounting ring (7) fixedly installed on the right end of the welding nozzle (4), two rectangular limiting slides (8) fixedly installed on the left outer wall of the mounting connecting seat (2), a limiting slide (9) slidably connected to the inside of the rectangular limiting slide (8), an adjusting rod (10) fixedly installed on the left outer wall of the limiting slide (9), a connecting block (11) fixedly installed on the opposite outer wall of the two adjusting rods (10), an arc-shaped limiting seat (12) fixedly installed on the opposite outer wall of the two connecting blocks (11), and a fixedly installed on the mounting connecting seat ( 2) Two mounting seats (15) on the front outer wall, a rotating shaft (16) rotatably mounted between the two mounting seats (15), two second limiting rings (17) fixedly mounted on the outer peripheral wall of the rotating shaft (16), threaded columns (18) fixedly mounted on both ends of the rotating shaft (16), fastening nuts (19) threadedly connected to the outer peripheral wall of the threaded columns (18), a connecting rod (20) fixedly mounted on the outer peripheral wall of the rotating shaft (16), a mounting rod (21) fixedly mounted on the side of the connecting rod (20) away from the rotating shaft (16), and limiting connecting seats (22) fixedly mounted on the top outer wall and bottom outer wall of the mounting rod (21) respectively.

2. The welding nozzle clamping device according to claim 1, characterized in that: The two adjusting rods (10) are fixedly installed on the outer wall of opposite sides with a limiting seat (13). The welding nozzle (4) is fixedly installed with two positioning seats (14). The positioning seat (14) has a positioning groove (24) inside. The limiting seat (13) is slidably connected to the inside of the positioning groove (24) and is of the same size.

3. The welding nozzle clamping device according to claim 1, characterized in that: The outer peripheral wall of the mounting ring (7) has two arc-shaped mounting grooves (23), and the arc-shaped limiting seat (12) is slidably connected inside the arc-shaped mounting groove (23) and is of the same size.

4. The welding nozzle clamping device according to claim 1, characterized in that: The limiting connecting seat (22) has a limiting groove (25) inside, and the adjusting rod (10) is slidably connected inside the limiting groove (25) and is of the same size.

5. The welding nozzle clamping device according to claim 1, characterized in that: The diameter of the connecting tube (3) is the same as the inner diameter of the connecting sleeve (5). The connecting tube (3) is slidably connected to the inner circumferential wall of the connecting sleeve (5). The right end of the connecting sleeve (5) is in contact with the left side of the first limiting ring (6). The diameter of the connecting sleeve (5) is the same as the diameter of the first limiting ring (6).

6. The welding nozzle clamping device according to claim 1, characterized in that: The outer walls of the two second limiting rings (17) on opposite sides are slidably connected to the outer walls of the two mounting seats (15) on opposite sides. The threaded column (18) penetrates the interior of the mounting seat (15) and extends outward. The outer walls of the two fastening nuts (19) on opposite sides are respectively attached to the outer walls of the two mounting seats (15) on opposite sides.

7. The welding nozzle clamping device according to claim 1, characterized in that: The connecting rod (20), the mounting rod (21) and the limiting connecting seat (22) are all located on the back side of the welding gun seat (1), and the connecting rod (20) is attached to the back side of the mounting connecting seat (2).

8. The welding nozzle clamping device according to claim 1, characterized in that: The mounting connector (2) is fixedly installed on the left side of the welding torch holder (1), the connecting pipe (3) is fixedly installed on the left side of the mounting connector (2), and the welding nozzle (4) is located on the left side of the connecting pipe (3).

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